Related Clues:
- Sign of sleepiness
- Bored sign
- Oscitate
- The route up north, open wide
- Bore from North Street (retired)
- Sound made by sleeper
- Show tiredness/boredom
- Mouth-stretching end of grey beard
- Sign of tiredness
- Make noises sleeping
- Noise made while asleep
- Boring idea, to go unsteadily north
- 'How boring'
- It's the last thing one wants to hear at night in broken Norse
- A whistle may follow it in cartoons